摘要 | 在查阅文献资料、标本数据和影像数据的基础上,分析了南昌市珍稀濒危野生植物的物种组成和空间分布,并探讨了南昌市珍稀濒危野生植物的致危原因及合理保护措施。结果表明:南昌市共有珍稀濒危野生植物22科29属36种(含亚种、变种,下同),其中,国家重点保护野生植物29种,受威胁物种25种(极危2种、濒危6种、易危17种)。南昌市大部分珍稀濒危野生植物分布较为狭窄,新建区、安义县和南昌县的植物种类较丰富;物种丰富度总体上呈现以西山山脉为中心,向四周逐渐减少的分布格局。地形异质性、水文复杂性造就了南昌市珍稀濒危野生植物的物种多样性,强烈的人为干扰是南昌市珍稀濒危野生植物数量稀少、分布狭窄、受威胁物种占比高的主要原因。因此,建议尽快开展南昌市珍稀濒危野生植物的野外调查工作,并加强这些物种的保护和宣传力度。
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Abstract | Based on consulting literature, specimen data, and image data, the species composition and spatial distribution of rare and endangered wild plants in Nanchang City were analyzed, and the causes of their endangerment as well as reasonable protection measures were explored. The results show that there are a total of 36 species (including subspecies and variety, the same below) of rare and endangered wild plants belonging to 29 genera of 22 families in Nanchang City, among which, there are 29 species of national key protected wild plants, and 25 threatened species (2 critically endangered species, 6 endangered species, and 17 vulnerable species). The distributions of most of rare and endangered wild plants in Nanchang City are relatively narrow, there are abundant plant species in Xinjian District, Anyi County, and Nanchang County; the species richness generally exhibits a distribution pattern centered on the Xishan Mountains, and gradually decreasing towards the surroundings. Topographic heterogeneity and hydrological complexity contribute to the species diversity of rare and endangered wild plants in Nanchang City, and strong human interference is the main reason for the scarcity, narrow distribution, and high threatened species proportion of rare and endangered wild plants in Nanchang City. Therefore, it is suggested to promptly carry out field surveys of rare and endangered wild plants in Nanchang City, and strengthen the efforts in protection and publicity of these species.
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关键词 | 南昌市; 珍稀濒危野生植物; 物种组成; 分布特征 |
Key words | Nanchang City; rare and endangered wild plant; species composition; distribution characteristics |
作者 | 王阅兵1, 郑育桃2, 黄松1, 赵攀2, 陈傲雪1, 李家湘1 |
所在单位 | 1. 中南林业科技大学林学院, 湖南 长沙 410004; 2. 江西省林业科学院园林规划设计研究所, 江西 南昌 341102 |
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基金项目 | 湖南省自然科学基金面上项目(2023JJ30995); 2022年度中央林业改革发展资金——国家重点野生动植物保护补助项目 |